Hiduron® 130 is a high-strength cupronickel supplied in the hot worked condition. Precipitation strengthening means that no further heat treatment is necessary to make it one of the highest strength copper alloys commercially available. Being a cupronickel, it has excellent resistance to corrosion by seawater and in marine and industrial atmospheres and it is highly resistant to crevice corrosion.

Hiduron® 191 is a medium-strength precipitation hardened cupronickel alloy supplied in the hot worked condition. It contains about 14.5% nickel and 4.5% manganese strengthened by additions of aluminium and iron. It was developed to provide both the corrosion resistance and anti-fouling characteristics of conventional cupronickels but with superior tensile and toughness properties compared to aluminium bronzes.

Hidurel® 5 is a precipitation-hardening copper-nickel-silicon alloy possessing high electrical and thermal conductivity with very good notch ductility and high mechanical strength. Despite its high strength, the alloy is resistant to hydrogen embrittlement. Resistance to corrosion under marine and industrial conditions is excellent and the alloy has good anti-frictional and bearing properties.

Sanmac® 316L is an improved-machinability austenitic stainless steel. The addition of Mo provides the product with much improved corrosion resistance compared with Alloy 304, particularly with respect to pitting and crevice corrosion in chloride environments.

Alloy 316L is an austenitic stainless steel supplied in the hot worked and annealed condition. The addition of Mo provides the product with much improved corrosion resistance compared with Alloy 304, particularly with respect to pitting and crevice corrosion in chloride environments.

Alloy 254 is a high alloy austenitic stainless steel supplied in the hot worked and annealed condition. Significant additions of Mo, Ni and Cu gives this alloy a good resistance to pitting and crevice corrosion, especially in environments containing halide ions e.g. chloride, bromide and fluoride solutions.

Fermonic® 50 – Annealed (also known as Nitronic® 50 – a trademark owned by AK Steel Corporation) is a nitrogen-strengthened austenitic stainless steel supplied in the annealed condition. It provides almost double the yield strength of common austenitic stainless steel grades such as Alloy 304 and Alloy 316L, offering the potential to reduce section size and therefore weight and cost.

Fermonic® 50 – HS/EHS (also known as Nitronic® 50 – a trademark owned by AK Steel Corporation) is a nitrogen-strengthened austenitic stainless steel that can be supplied in the cold worked or warm worked condition. This product maintains excellent ductility and toughness at both elevated and cryogenic temperatures.

Sanmac® 2205 is a 22% Cr duplex stainless steel with improved machinability as standard. As a duplex stainless steel, it combines the desirable aspect of properties of both austenitic and ferritic grades. The high chromium, molybdenum and nitrogen contents results in a Pitting Resistance Equivalent number (PREN) of 33-34, providing pitting and crevice corrosion resistance superior to Alloy 316L in almost all corrosive media.

Sanmac 2205 is a machinability-improved version of the duplex (austenitic-ferritic) stainless steel Sandvik SAF 2205.
The new generation of Sanmac stainless steels present even better opportunities to reduce tool wear and increase cutting speeds, giving productivity improvements and therefore significant cost reductions per produced item.
In Sanmac materials, machinability has been improved without jeopardizing properties such as corrosion resistance and mechanical strength. The non-metallic inclusions in Sanmac steels are of great significance to the improved machinability. In addition to sulfides, Sanmac steels contain oxide inclusions that improve chip breaking and reduce tool wear.

(Sanmac is a registered trademark of Sandvik Intellectual Property AB)

Alloy 2205 is a 22% Cr duplex stainless steel, supplied in the solution annealed condition. As a duplex stainless steel, it combines the desirable aspect of properties of both austenitic and ferritic grades. The high chromium, molybdenum and nitrogen contents results in a Pitting Resistance Equivalent number (PREN) of 33-34.

Ferralium® 255 – SD50 (super duplex 255) is a stainless steel which is supplied in the hot worked and annealed condition. It achieves higher strengths than most other stainless steels and alternative corrosion resistant alloys, offering the potential to reduce section size and therefore weight and cost.

Ferralium® 255 is a super duplex stainless steel supplied in the cold finished and annealed condition. It offers excellent corrosion resistance in a wide variety of corrosive chemicals including sulphuric, nitric and phosphoric acid, seawater and other chloride containing environments.

Sandvik SAF2507 is a super duplex stainless steel for service in highly corrosive conditions, similar to Alloy 32750. As a super duplex stainless steel, the SAF2507 combines the desirable aspects of both austenitic and ferritic grades. The higher chromium, molybdenum and nitrogen contents result in a Pitting Resistance Equivalent number (PREN) of >41, providing pitting and crevice corrosion resistance superior to austenitic and duplex stainless steels in almost all corrosive media, and a Critical Pitting Temperature exceeding 50°C.

Alloy 32750 is a super duplex stainless steel supplied in the solution annealed condition. As a super duplex stainless steel, it combines the desirable aspects of both austenitic and ferritic grades. The higher chromium, molybdenum and nitrogen contents result in a Pitting Resistance Equivalent number (PREN) of >40.

Alloy 32750 is a super duplex stainless steel supplied in the hot worked and solution annealed condition. As a super duplex stainless steel, it combines the desirable aspects of both austenitic and ferritic grades. The higher chromium, molybdenum and nitrogen contents result in a Pitting Resistance Equivalent number (PREN) of >40.

Alloy 32760 is a super duplex stainless steel supplied in the hot worked and solution annealed condition. As a super duplex stainless steel, it combines the desirable aspects of both austenitic and ferritic grades. The higher chromium, molybdenum and nitrogen contents result in a Pitting Resistance Equivalent number (PREN) of >40.

Alloy 32760 is a super duplex stainless steel supplied in the hot worked and solution annealed condition. As a super duplex stainless steel, it combines the desirable aspects of both austenitic and ferritic grades. The higher chromium, molybdenum and nitrogen contents result in a Pitting Resistance Equivalent number (PREN) of >40.

Ferralium® 255 – 3AF is a super duplex stainless steel supplied in the hot worked, annealed and aged condition. By subjecting the product to an additional ageing process, it is possible to further increase the tensile strength of the product whilst retaining its high levels of ductility.

Ferralium® 255 – FG46 is a super duplex stainless steel supplied in the strain hardened condition (Condition S). It is optimised for fastener applications, matching the mechanical properties of the B7 grade alloy carbon steel which is most commonly used for high-pressure bolting applications.

Alloy 400 is a nickel-copper (Monel®) single-phase alloy most commonly supplied in hot worked and annealed condition. In its standard annealed condition it is easy to form and fabricate with no requirements for additional heat treatments to re-balance the alloy.

Alloy K500 is a precipitation-hardenable nickel-copper alloy which is also known as Monel K500 (Monel® is Special Metals Corporation’s trademark for a family of Nickel-Copper alloys). Although Langley Alloys supply Alloy K500 in all conditions, we predominantly supply material in the hot worked and precipitation treated condition, which offers the optimum combination of high strength and ductility across the size range.

Alloy 625 is a nickel-chromium-molybdenum-niobium alloy (NiCr22Mo9Nb), supplied in the hot worked and annealed condition. It achieves high-strength levels from the solid solution effects of Molybdenum and Niobium (Colombium) from room temperature up to 800°C.

Alloy 718 is a high-strength, corrosion-resistant nickel chromium alloy supplied in the hot worked, solution annealed and age hardened condition. The addition of Nb, Ti, Al and Ni form a series of precipitates during the controlled solution annealing and ageing process steps, resulting in a significant increase in strength and hardness.

Alloy 725 is a nickel-chromium alloy with significant additions of molybdenum, niobium and titanium, supplied in the hot worked, annealed and age-hardened condition. It is age-hardened to achieve extremely high strength, approximately twice that of alloy 625 in the annealed condition.

Alloy 825 is a nickel-iron-chromium alloy with additions of molybdenum, copper and titanium (NiCr21Mo), supplied in the hot worked and annealed condition. It achieves good mechanical properties from cryogenic to medium-high temperatures (5400C) and can be significantly strengthened through cold working.

Alloy 825 is a nickel-iron-chromium alloy with additions of molybdenum, copper and titanium (NiCr21Mo). Langley Alloys can supply the unique metal in the hot worked and annealed condition. It achieves good mechanical properties from cryogenic to medium-high temperatures (5400C) and can be significantly strengthened through cold working.

Alloy 825 HS110 is a high strength nickel-iron-chromium alloy with additions of molybdenum, copper and titanium (NiCr21Mo). We supply the metal in the hot worked, annealed and cold worked condition. Controlled cold working ensures that the product achieves significantly increased yield strengths over the annealed product, whilst retaining good ductility and toughness.

Sheet and plate

Production of flat products suitable for fabrication

For many end users, there is little difference in the basic appearance of sheet and plate – both are relatively wide, relatively long flat sheets of metal. However, within the steel production process there are two distinct process routes utilised.

Sheet

Sheet is typically used to describe thinner items, from 6mm (1/4”) down to less than 1mm (3/64”). For commodity carbon and stainless steels this assumes large-scale casting of slabs that are then reduced in thickness by a series of rolling processes. Before hot rolling, the slab is heated to its plastic deformation temperature then worked between pairs of rollers to the desired thickness. The original cast, coarse grain structure of the slab is broken down and replaced by finer grains, improving toughness and ductility. As the strain is applied in one dimension only (so-called ‘plain strain’) the reduction in thickness results in a subsequent increase in length. The original slab becomes too long to be handled as a flat item, and so it is wound-up into a coil. Further processing is possible after hot rolling, such as:

pickling, to remove the thick oxide created during hot rolling

cold rolling, to reduce the thickness further and improve dimensional and surface tolerances

annealing, to soften the metal and increase ductility

temper rolling, to remove the yield point and improve formability

decoiling, to turn a wound-up coil into packs of flat sheets

Langley Alloys can supply our products down to 1.00 mm thickness while maintaining gauge thickness and flatness requirements of ASTM 480 M-02. As this is a very cost effective production route, Langley Alloys can be your preferred partner for 1.00 to 5.00 mm thickness.

Plates

A similar hot rolling process is also used to produce plates – where the main difference is simply the thickness of the finished piece. Rather than use a series of rollers, one pair of rollers might be used repeatedly to reduce the thickness, which is called a reversing mill. For some grades, either the composition or the market requirement mean that the starting point is a singular ingot rather than a series of many continuously cast slabs. For such thicker pieces, this simpler process configuration can result in a lower conversion cost, producing items from 6mm (1/4”) up to 250mm (10”) or more.

Particularly for thicker pieces where the level of grain refinement is less, the difference in properties across and along the plate can be appreciably different. Therefore, Langley Alloys prefers its products to be manufactured via a cross rolling process. Here, the plate is repeatedly turned by 90 degrees through its rolling programme, giving plates a greater uniformity of microstructure and properties in the transverse and longitudinal directions. This can aid cutting, fabrication and result in more efficient component design.

Traditional plates are often supplied in industry-standard sizes (i.e. 12.0m x 3m / 39’ x 9’), which can then be cut-down to size – Langley Alloys operates its own water-jet cutter, producing a high quality finish with no undesirable impact on metal properties from high heat inputs.